In this article, we will explain how to create a “Session State in ASP.NET Core and MVC Core”.

Session State

In Session State, we can use to save and store user data while the user browses your web app. We already know that in previous versions of ASP.NET, we could store session as key value pair like this “Session[“Name”] = “Rajeesh Menoth”” and implement it in an easy way. But in the latest version of ASP.NET or ASP.NET Core, we need to do a few configurations for accessing and enabling Session State in the application. The main purpose of session is maintaining user data in memory because of HTTP is a stateless protocol.

Before reading this article, you must read the articles given below for ASP.NET Core knowledge.

We add the “app.UseSession()” inside the Configure Method in “Startup.cs” Class because it gets called by the runtime. One more advantage is we can use this method to configure the HTTP request pipeline in our application.

We are familiar with Sending Email Using Asp.Net With C#. But today, we are going to teach you how to send email using ASP.NET Core 1.1 with MailKit. We can implement it in ASP.Net Core very easily as compared to the previous versions of ASP.NET.

Before reading this article, you must read the articles given below for ASP.NET Core knowledge.

MailKit is a cross-platform mail client library built on top of MimeKit. That means we get all the mail sending libraries from MailKit, such as – Simple Mail Transfer Protocol (SMTP) etc.

Simple Mail Transfer Protocol (SMTP)

Simple Mail Transfer Protocol (SMTP) is a TCP/IP protocol used in sending and receiving e-mail. Most e-mail systems that send mail over the Internet use SMTP to send messages from one server to another.The messages can then be retrieved with an e-mail client using either POP or IMAP.

The following is a list of SMTP Server and Port Numbers.

Sl.No

Mail Server

SMTP Server( Host )

Port Number

1

Gmail

smtp.gmail.com

587

2

Outlook

smtp.live.com

587

3

Yahoo Mail

smtp.mail.yahoo.com

465

4

Yahoo Mail Plus

plus.smtp.mail.yahoo.com

465

5

Hotmail

smtp.live.com

465

6

Office365.com

smtp.office365.com

587

7

zoho Mail

smtp.zoho.com

465

Assemblies Required

The following assemblies are required for sending email using ASP.NET Core with MailKit.

New .NET Core tooling is available in Visual Studio 2017 by default. In the Dependencies folder, every package tool has separate folder like MailKit saved into NuGet folder. If you have a client side tool like bower, then its dependencies are saved into it’s folder.

When you are sending mail with your “gmail” account, enable less secure apps so that you will be able to login from all apps. Otherwise, it will throw authentication error like 5.5.1 authentication.

Remove 2-Step Verification.

In the following code, we can mention username for “gmail” account but in other service like “hotmail”, we must provide the full email address because other Microsoft accounts, like Outlook, live, etc. have the same SMTP Server Address “smtp.live.com”.

client.Authenticate("From Address Email", "Password");

csproj

In previous version, ASP.NET Core 1.0 contained all the versions & dependencies in project.json file but in new version, i.e., ASP.NET Core 1.1, they are saved in csproj.